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Now you see it, now you dont! A perfect puzzle when you need something just a little extra to give your brain a boost, or a friend a headache!
Our popular "invisible" puzzle comes in 4 difficulty levels.
25p - 5x5in
50p - 5x10in
75p - 5x12.5in
144p - 8x8in
Each piece is unique and you'll need to practice patience to determine which direction the piece goes.
The only clue you have is the photo on the box and a small Wisdom Heart logo in the bottom right.